199673473 has 2 divisors, whose sum is σ = 199673474. Its totient is φ = 199673472.

The previous prime is 199673459. The next prime is 199673477. The reversal of 199673473 is 374376991.

It is a happy number.

199673473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150994944 + 48678529 = 12288^2 + 6977^2 .

It is an emirp because it is prime and its reverse (374376991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199673473 - 2⁹ = 199672961 is a prime.

It is not a weakly prime, because it can be changed into another prime (199673477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99836736 + 99836737.

It is an arithmetic number, because the mean of its divisors is an integer number (99836737).

Almost surely, 2^199673473 is an apocalyptic number.

It is an amenable number.

199673473 is a deficient number, since it is larger than the sum of its proper divisors (1).

199673473 is an equidigital number, since it uses as much as digits as its factorization.

199673473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 49.

The square root of 199673473 is about 14130.5864351059. The cubic root of 199673473 is about 584.4851173728.

The spelling of 199673473 in words is "one hundred ninety-nine million, six hundred seventy-three thousand, four hundred seventy-three".